Aptitude Is Somehow Similar To Spiritual Roots

"Saying you want to be taught magic... Touya, do you have any aptitude?"

"Aptitude?"

"Magic greatly depends on the aptitude that a person is born with... A person without any aptitude cannot use magic no matter what they do.."

As soon as Lindsey explains that to Touya, Touya seems to be in thought as he goes silent for a while.

"Aptitude. Huh...yeah. However, wouldn't it be alright? A certain person guaranteed and said I can use magic immediately if it's me."

"Who is that person?"

"That...he is a really important person."

"Touya and his mysterious words. If you are wondering, the important person Touya is talking about is our foster grandfather."

I interject Lindsey and Touya's conversation.

"As you can notice that I have silver hair while Touya has black hair, Touya and I are not biological siblings but we treat each other as brothers. Since I am older than Touya despite my 14-year-old appearance, I treat Touya as my little brother."

I further explain my relationship with Touya to Lindsey and Elsie. Lindsey and Elsie nod in understanding.

"Whether I have the aptitude or not, I have no method to find out."

To Touya's question, Lindsey takes out some translucent stones from the pouch on her waist. They are shining like glass from red and blue, yellow to colorless approximately at the size of one centimeter.

"This, what is it?"

"This is a magic stone, desu. Magical power is amplified, stored and it can be released. We can investigate your aptitude using this. However, only roughly."

Lindsey picks up a bluish transparent stone in her hand and then places it above the cup of tea that Touya just finished drinking.

"Come forth, water."

When Lindsey speaks those words, a small amount of water begins to flow out from the magic stone and falls into the cup.

"This is the state when magic is invoked, desu. The magic stone produces water in response to my magical water."

"By the way..."

The nearby Elsie receives the magic stone from Lindsey and chants the incantation the same way.

"Come forth, water."

But, the magic stone doesn't show any reaction. Not one drop of water came out.

"This is what happens when you have no aptitude in water. So this means I can't use water magic."

"Even though you're twins, Elsie can't use it."

"Don't just bluntly say what's on your mind... Well, not that I mind."

Touya and his slip of the tongue. It is a good thing that Elsie isn't seriously angry.

"Elsie can't use water magic, but instead she can use body strengthening magic... In contrast, I can't use body strengthening magic because I would need the aptitude to use it."

"Magic is something that everyone possesses, but if they have no aptitude for it, they can't use the skill."

It is somehow similar to a cultivator that can't use fire-based cultivation techniques because they don't possess a fire spiritual root. I possess all spiritual roots so I can use all cultivation techniques.

"Then, if I do that too, we'll find out if I have the aptitude or not."

"Yes. Hold the stone in your hand and concentrate your consciousness on it. Then please recite "Come forth, water"."

Touya receives the blue magic stone from Elsie and then he brings the magic stone above a plate to avoid the table getting wet.

I see Touya's mana flow towards the blue magic stone and he recites the incantation.

"Come forth, water."

The next moment, water starts to overflow from the magic stone like a broken faucet.

When Touya lets go of the magic stone in surprise, the water stops instantly. However, the table is flooded and the tablecloth is sopping wet.

"....What does this mean?"

Touya demands an explanation from the twins but the twins are dumbfounded so I decided that I might be the one to explain it to Touya.

"Little bro, you possess a vast amount of mana in your mana pool that it overloads the magic stone. Hence, the magic stone creates a lot of water. If you have used a magic stone of higher quality, then the coffee shop will likely be flooded."

"Time law- second layer. Time Rewind"

The table and tablecloth which was previously wet became dry again due to reversing time.

Touya, Lindsey, and Lindsey sigh in relief that they didn't need to apologize for the mess that they have caused.

We left the coffee shop and went to the inn.

Because it is already evening by the time we arrive at the inn, Touya's magic lesson will be continued tomorrow.

I am in my room while sitting in a lotus position, meditating. I didn't need to sleep after I step into the Immortal Realm and it was better to meditate and improve my foundation rather than lazing on the bed.

I closed my eyes and I start to solidify my cultivation base of Deity Immortal.